Skip to main content
. 2021 Jul-Sep;14(3):236–244. doi: 10.5935/1984-0063.20200071

Supplementary Table 2:

Distribution of sample characteristics according to diagnoses of obstructive sleep apnea (on the left) and periodic limb movement disorder (on the right)

Characteristic Raised AHI
(N=242; P=59.75%)
Normal AHI
(N=163; P=40.45%)
p High PLMI
(N=165; P=40.74%)
Normal PLMI
(N=240; P=59.51%)
p
Mean (SD) Mean (SD) Mean (SD) Mean (SD)
Age (in years) 49.08 (13.80) 40.80 (12.75) <0.001 49.70 (14.37) 43.03 (13.05) <0.001
NC (in cm) 42.04 (4.27) 38.00 (4.22) <0.001 40.97 (4.75) 40.03 (4.57) 0.104
BMI 36.47 (8.10) 31.56 (6.77) <0.001 34.30 (7.90) 34.64 (8.01) 0.525
ESS Score 11.15 (5.24) 10.59 (5.50) 0.344 10.05 (5.46) 11.52 (5.19) 0.004
  N (valid %) N (valid %)   N (valid %) N (valid %)  
Male Sex 115 (47.52) 50 (30.67) 0.001 74 (44.85) 91 (37.92) 0.163
Tobacco Use 89 (37.24) 71 (44.65) 0.139 62 (37.80) 98 (41.88) 0.414
Alcohol Use 30 (12.50) 21 (13.21) 0.836 17 (10.37) 34 (14.47) 0.227
Caffeine Use 194 (83.26) 127 (81.94) 0.735 134 (82.72) 187 (82.74) 0.994
Medical History            
Psychiatric 170 (71.73) 134 (83.23) 0.008 123 (75.46) 181 (77.02) 0.718
Cardiovascular 148 (62.45) 68 (42.24) <0.001 102 (62.58) 114 (48.51) 0.006
Respiratory 60 (25.32) 47 (29.19) 0.392 42 (25.77) 65 (27.66) 0.675
Neurological 28 (11.81) 24 (14.91) 0.369 15 (9.20) 37 (15.74) 0.057
Pain 158 (66.67) 107 (66.46) 0.966 106 (65.03) 159 (67.66) 0.585
Psychotropic Drug Intake (D)     0.071     0.018
C 100 (47.17) 46 (34.07)   60 (41.67) 86 (42.36)  
AD 62 (29.25) 43 (31.85)   55 (38.19) 50 (24.63)  
ADAC 24 (11.32) 16 (11.85)   15 (10.42) 25 (12.32)  
ADAP 13 (6.13) 15 (11.11)   8 (5.56) 20 (9.85)  
ADACP 13 (6.13) 15 (11.11)   6 (4.17) 22 (10.84)  
Other Psychotropic Drug Intake            
Benzodiazepines 53 (22.65) 35 (22.01) 0.882 25 (15.63) 63 (27.04) 0.008
Hypnotics 15 (6.41) 16 (10.06) 0.187 15 (9.38) 16 (6.87) 0.365
Wellbutrin 21 (8.97) 13 (8.18) 0.782 18 (11.25) 16 (6.87) 0.129
Trazodone 35 (14.96) 17 (10.69) 0.221 18 (11.25) 34 (14.59) 0.337
Mirtazapine 8 (3.42) 6 (3.77) 0.852 6 (3.75) 8 (3.43) 0.868
Lithium 9 (3.85) 1 (0.63) 0.054a 3 (1.88) 7 (3.00) 0.746a
Opiates 31 (13.25) 25 (15.72) 0.491 26 (16.25) 30 (12.88) 0.347
Antihistamines 46 (19.66) 24 (15.09) 0.246 27 (16.88) 43 (18.45) 0.688

Mann-Whitney test was used for the analyses of continuous variables. Pearson’s Chi-Square test was used for the analyses of categorical variables, except where marked with a, which refers to the use of Fisher’s exact test.

AHI: apnea-hypopnea index; PLMI: periodic limb movement index; N: count; P: valid percent; SD: standard deviation; NC: neck circumference; BMI: body mass index; ESS: Epworth sleepiness scale; C: controls group; AD: antidepressants group; ADAC: antidepressants and anticonvulsants; ADAP: antidepressants and antipsychotics; ADACP: antidepressants and anticonvulsants and antipsychotics group